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CVE-2025-53690

Sitecore Products ViewState Deserialization Vulnerability

Published: Sep 3, 2025Updated: Oct 30, 2025 Sources: CVE List NVD BDUCWE-502
9.0CRITICAL
NVD MITRE
EPSS Score
31.4%
Top 1.9%
CISA KEV
Active Exploitation
Since Sep 4, 2025
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Deserialization of Untrusted Data vulnerability in Sitecore Experience Manager (XM), Sitecore Experience Platform (XP) allows Code Injection.This issue affects Experience Manager (XM): through 9.0; Experience Platform (XP): through 9.0.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-502

Affected Products

Sitecore
commercialaka experience platform, sitecore managed cloud, experience manager
experience commerceOn-premWeb App
Web & CMS Plugins / ecommerce-platform
experience managerOn-premWeb App
Web & CMS Plugins / cms-core
experience platformOn-prem
Web & CMS Plugins / cms-core
managed cloudSaaSSaaS Service
Cloud & SaaS / saas-application
Experience Manager (XM)On-premWeb App
Web & CMS Plugins / cms-core
Experience Platform (XP)On-premWeb App
Web & CMS Plugins / cms-core
Sitecore Experience CommerceOn-premWeb App
Enterprise Software
Sitecore Experience ManagerOn-premWeb App
Web & CMS Plugins / cms-core
and 2 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Sep 4, 2025
Remediation due:Sep 25, 2025

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Official Patch Available
Is your org exposed to CVE-2025-53690?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

3 techniques
Execution
Initial Access
View detailed technique mapping

References

https://cloud.google.com/blog/topics/threat-intelligence/viewstate-deserialization-zero-day-vulnerability
cloud.google.com
https://support.sitecore.com/kb?id=kb_article_view&sysparm_article=KB1003865
support.sitecore.com
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-53690
cisa.gov
and 2 more references View all →

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